1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
4 
5 extern int omp_default_mem_alloc;
6 void foo() {
7 }
8 
9 bool foobool(int argc) {
10   return argc;
11 }
12 
13 void xxx(int argc) {
14   int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
15 #pragma omp parallel sections firstprivate(fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
16   {
17     for (int i = 0; i < 10; ++i)
18       ;
19   }
20 }
21 
22 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
23 extern S1 a;
24 class S2 {
25   mutable int a;
26 
27 public:
28   S2() : a(0) {}
29   S2(const S2 &s2) : a(s2.a) {}
30   static float S2s;
31   static const float S2sc;
32 };
33 const float S2::S2sc = 0;
34 const S2 b;
35 const S2 ba[5];
36 class S3 {
37   int a;
38   S3 &operator=(const S3 &s3);
39 
40 public:
41   S3() : a(0) {}
42   S3(const S3 &s3) : a(s3.a) {}
43 };
44 const S3 c;
45 const S3 ca[5];
46 extern const int f;
47 class S4 {
48   int a;
49   S4();
50   S4(const S4 &s4); // expected-note 2 {{implicitly declared private here}}
51 
52 public:
53   S4(int v) : a(v) {}
54 };
55 class S5 {
56   int a;
57   S5(const S5 &s5) : a(s5.a) {} // expected-note 4 {{implicitly declared private here}}
58 
59 public:
60   S5() : a(0) {}
61   S5(int v) : a(v) {}
62 };
63 class S6 {
64   int a;
65   S6() : a(0) {}
66 
67 public:
68   S6(const S6 &s6) : a(s6.a) {}
69   S6(int v) : a(v) {}
70 };
71 
72 S3 h;
73 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
74 
75 template <class I, class C>
76 int foomain(int argc, char **argv) {
77   I e(4);
78   C g(5);
79   int i, z;
80   int &j = i;
81 #pragma omp parallel sections firstprivate // expected-error {{expected '(' after 'firstprivate'}}
82   {
83     foo();
84   }
85 #pragma omp parallel sections firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
86   {
87     foo();
88   }
89 #pragma omp parallel sections firstprivate() // expected-error {{expected expression}}
90   {
91     foo();
92   }
93 #pragma omp parallel sections firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
94   {
95     foo();
96   }
97 #pragma omp parallel sections firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
98   {
99     foo();
100   }
101 #pragma omp parallel sections firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
102   {
103     foo();
104   }
105 #pragma omp parallel sections firstprivate(argc) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
106   {
107     foo();
108   }
109 #pragma omp parallel sections firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
110   {
111     foo();
112   }
113 #pragma omp parallel sections firstprivate(z, a, b) // expected-error {{firstprivate variable with incomplete type 'S1'}}
114   {
115     foo();
116   }
117 #pragma omp parallel sections firstprivate(argv[1]) // expected-error {{expected variable name}}
118   {
119     foo();
120   }
121 #pragma omp parallel sections firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}}
122   {
123     foo();
124   }
125 #pragma omp parallel sections firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
126   {
127     foo();
128   }
129 #pragma omp parallel sections linear(i) // expected-error {{unexpected OpenMP clause 'linear' in directive '#pragma omp parallel sections'}}
130   {
131     foo();
132   }
133 #pragma omp parallel
134   {
135     int v = 0;
136     int i;
137 #pragma omp parallel sections firstprivate(i)
138     {
139       foo();
140     }
141     v += i;
142   }
143 #pragma omp parallel shared(i)
144 #pragma omp parallel private(i)
145 #pragma omp parallel sections firstprivate(j)
146   {
147     foo();
148   }
149 #pragma omp parallel sections firstprivate(i)
150   {
151     foo();
152   }
153 #pragma omp parallel sections lastprivate(g) firstprivate(g) // expected-error {{calling a private constructor of class 'S5'}}
154   {
155     foo();
156   }
157 #pragma omp parallel private(i)
158 #pragma omp parallel sections firstprivate(i)
159   {
160     foo();
161   }
162 #pragma omp parallel reduction(+ : i)
163 #pragma omp parallel sections firstprivate(i)
164   {
165     foo();
166   }
167   return 0;
168 }
169 
170 namespace A {
171 double x;
172 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
173 }
174 namespace B {
175 using A::x;
176 }
177 
178 int main(int argc, char **argv) {
179   const int d = 5;
180   const int da[5] = {0};
181   S4 e(4);
182   S5 g(5);
183   S3 m;
184   S6 n(2);
185   int i, z;
186   int &j = i;
187 #pragma omp parallel sections firstprivate // expected-error {{expected '(' after 'firstprivate'}}
188   {
189     foo();
190   }
191 #pragma omp parallel sections firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
192   {
193     foo();
194   }
195 #pragma omp parallel sections firstprivate() // expected-error {{expected expression}}
196   {
197     foo();
198   }
199 #pragma omp parallel sections firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
200   {
201     foo();
202   }
203 #pragma omp parallel sections firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
204   {
205     foo();
206   }
207 #pragma omp parallel sections firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
208   {
209     foo();
210   }
211 #pragma omp parallel sections firstprivate(argc, z)
212   {
213     foo();
214   }
215 #pragma omp parallel sections firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
216   {
217     foo();
218   }
219 #pragma omp parallel sections firstprivate(a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}}
220   {
221     foo();
222   }
223 #pragma omp parallel sections firstprivate(argv[1]) // expected-error {{expected variable name}}
224   {
225     foo();
226   }
227 #pragma omp parallel sections firstprivate(2 * 2) // expected-error {{expected variable name}}
228   {
229     foo();
230   }
231 #pragma omp parallel sections firstprivate(ba) // OK
232   {
233     foo();
234   }
235 #pragma omp parallel sections firstprivate(ca) // OK
236   {
237     foo();
238   }
239 #pragma omp parallel sections firstprivate(da) // OK
240   {
241     foo();
242   }
243   int xa;
244 #pragma omp parallel sections firstprivate(xa) // OK
245   {
246     foo();
247   }
248 #pragma omp parallel sections firstprivate(S2::S2s) // OK
249   {
250     foo();
251   }
252 #pragma omp parallel sections firstprivate(S2::S2sc) // OK
253   {
254     foo();
255   }
256 #pragma omp parallel sections safelen(5) // expected-error {{unexpected OpenMP clause 'safelen' in directive '#pragma omp parallel sections'}}
257   {
258     foo();
259   }
260 #pragma omp parallel sections firstprivate(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}}
261   {
262     foo();
263   }
264 #pragma omp parallel sections firstprivate(m) // OK
265   {
266     foo();
267   }
268 #pragma omp parallel sections firstprivate(h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be firstprivate}}
269   {
270     foo();
271   }
272 #pragma omp parallel sections private(xa), firstprivate(xa) // expected-error {{private variable cannot be firstprivate}} expected-note {{defined as private}}
273   {
274     foo();
275   }
276 #pragma omp parallel shared(xa)
277 #pragma omp parallel sections firstprivate(xa) // OK: may be firstprivate
278   {
279     foo();
280   }
281 #pragma omp parallel sections firstprivate(j)
282   {
283     foo();
284   }
285 #pragma omp parallel sections lastprivate(g) firstprivate(g) // expected-error {{calling a private constructor of class 'S5'}}
286   {
287     foo();
288   }
289 #pragma omp parallel sections lastprivate(n) firstprivate(n) // OK
290   {
291     foo();
292   }
293 #pragma omp parallel
294   {
295     int v = 0;
296     int i;
297 #pragma omp parallel sections firstprivate(i)
298     {
299       foo();
300     }
301     v += i;
302   }
303 #pragma omp parallel private(i)
304 #pragma omp parallel sections firstprivate(i)
305   {
306     foo();
307   }
308 #pragma omp parallel reduction(+ : i)
309 #pragma omp parallel sections firstprivate(i)
310   {
311     foo();
312   }
313   static int r;
314 #pragma omp parallel sections firstprivate(r) // OK
315   {
316     foo();
317   }
318 
319   return foomain<S4, S5>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<S4, S5>' requested here}}
320 }
321